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<p>Ez pár napja jött.<br>
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-------- Továbbított üzenet --------
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Tárgy: </th>
<td>T4P4S</td>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Dátum: </th>
<td>Wed, 15 May 2019 17:48:39 -0400</td>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Feladó:
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<td>Nik Sultana <a class="moz-txt-link-rfc2396E" href="mailto:nsultana@seas.upenn.edu"><nsultana@seas.upenn.edu></a></td>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Címzett:
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<td><a class="moz-txt-link-abbreviated" href="mailto:info@p4.elte.hu">info@p4.elte.hu</a></td>
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<br>
<br>
Hi, as part of a research project we're trying to find a way of
running<br>
P4 programs on CPU and maximising performance to carry out
baseline<br>
experiments.<br>
<br>
To keep our research focussed we'd rather use an existing tool
rather<br>
than build it ourselves, and were wondering if T4P4S is the best
way of<br>
doing this.<br>
<br>
We have Intel XL710 cards, already use DPDK in a different part of
the<br>
project, and our team has extensive experience using P4, but we
haven't<br>
got any practical experience of using T4P4S yet, so I thought I'd
get in<br>
touch.<br>
<br>
The examples provided in the publications linked from
<a class="moz-txt-link-freetext" href="http://p4.elte.hu/">http://p4.elte.hu/</a><br>
are interested but they tend to be simple -- e.g., L2 or L3
forwarding<br>
-- which don't seem to push P4 program syntax very hard, and this
made<br>
me unsure about T4P4S' suitability in our case.<br>
<br>
To help me get a better understanding of T4P4S I'd like to ask a
few quick questions:<br>
1. Can T4P4S compile any P4 program to run over DPDK, or does it
only support a supset of P4 program features?<br>
2. Does T4P4S support P4 extern functions and/or extern objects?
Given that these functions are typically written in something like
C, is it straightforward to compile/link them together with the
output generated by T4P4S?<br>
3. What are T4P4S limitations?<br>
4. Has T4P4S been used externally to ELTE before, as part of
somebody else's research project?<br>
<br>
Thanks for your time,<br>
Nik Sultana<br>
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